Kotlin Programming MCQ for Competitive Exams, Interviews, and Certifications

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Each section contains 100 MCQs on Kotlin Program .

Which platform type is not targeted by Kotlin for application development?

A) Web based application development B) Android application development C) Server side application development D) None of these

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Choose the layout manager of the RecyclerView under Android for Kotlin, which positions items in a staggered grid format

A) LinearLayoutManager B) GridLayoutManager C) StaggeredGridLayoutManager D) None of these

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which of the following is true about the lazy initialization in Kotlin?

A) It is used to delay the initialization of a variable B) It is used to initialize a variable with a default value C) It is used to declare a variable as immutable D) It is used to perform a null-check on a variable

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is the difference between the safe call operator (?.) and the non-null assertion operator (!!)?

A) The safe call operator returns null if the expression is null B) The safe call operator throws an exception if the expression is null C) The safe call operator performs a null-check before accessing the expression D) The safe call operator is used for nullable expressions

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

What is the difference between an open class and a final class in Kotlin?

A) An open class can be extended, a final class cannot B) An open class can be instantiated, a final class cannot C) An open class can be declared as nullable D) An open class can be declared as private

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is the difference between a function and a lambda expression in Kotlin?

A) A function is a named block of code, a lambda is anonymous B) A function can take arguments, a lambda cannot C) A function returns a value using return, a lambda returns the last expression D) A function can be called using its name, a lambda must be passed as a parameter

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is the difference between a top-level function and a member function in Kotlin?

A) A top-level function is defined outside a class B) A top-level function is defined inside a class C) A top-level function is static D) A top-level function can only be called from inside a class

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is the difference between a nullable and non-nullable variable in Kotlin?

A) A nullable variable can be null or have a value B) A nullable variable can only have a value C) A nullable variable can be cast to any other type D) A nullable variable can only be accessed within a try-catch block

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What are the most important benefit/benefits of using Kotlin language?

A) It is a functional language and based on Java Virtual Machine B) It is an expressive language that makes code readable and understandable. C) It makes code understandable and reusable D) All of the above

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

What are some of the features which are there in Kotlin but not In Java?

A) Null Safety & Coroutines B) Range expressions C) Operator Overloading D) All of the above

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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